March 31, 2023

September 30, 2022

Gross
Carrying
Value

Accumulated
Amortization

Net
Carrying
Amount

Gross
Carrying
Value

Accumulated
Amortization

Net
Carrying
Amount

Intangible assets with finite lives:

Customer relationships and contracts:

Aerospace

$

281,683

$

(229,858

)

$

51,825

$

281,683

$

(223,565

)

$

58,118

Industrial

390,123

(82,639

)

307,484

352,917

(66,812

)

286,105

Total

$

671,806

$

(312,497

)

$

359,309

$

634,600

$

(290,377

)

$

344,223

Intellectual property:

Aerospace

$

—

$

—

$

—

$

—

$

—

$

—

Industrial

12,428

(12,428

)

—

12,361

(12,361

)

—

Total

$

12,428

$

(12,428

)

$

—

$

12,361

$

(12,361

)

$

—

Process technology:

Aerospace

$

76,370

$

(70,410

)

$

5,960

$

76,370

$

(69,471

)

$

6,899

Industrial

85,596

(30,543

)

55,053

78,524

(27,464

)

51,060

Total

$

161,966

$

(100,953

)

$

61,013

$

154,894

$

(96,935

)

$

57,959

Other intangibles:

Aerospace

$

—

$

—

$

—

$

—

$

—

$

—

Industrial

571

(255

)

316

1,560

—

1,560

Total

$

571

$

(255

)

$

316

$

1,560

$

—

$

1,560

Intangible asset with indefinite life:

Tradename:

Aerospace

$

—

$

—

$

—

$

—

$

—

$

—

Industrial

63,246

—

63,246

56,838

—

56,838

Total

$

63,246

$

—

$

63,246

$

56,838

$

—

$

56,838

Total intangibles:

Aerospace

$

358,053

$

(300,268

)

$

57,785

$

358,053

$

(293,036

)

$

65,017

Industrial

551,964

(125,865

)

426,099

502,200

(106,637

)

395,563

Consolidated Total

$

910,017

$

(426,133

)

$

483,884

$

860,253

$

(399,673

)

$

460,580